@ehBeth,
We have a grid system that is coupled with a gas generator and weve gone to total LED lights in the studio and barns. (Except for banks of Fluorescent lights)
Ive asked an electrician to quote me a new LED series of panels that cn operate off a NON grid system. That way Im not hooked to the grid at all
The problems with a grid system is thqt (qt least in Pa) we must shut down during a grid power outage (storms or auto accidents into a power station (That way the repair linemen are protected from blow-back of electricity into the power lines from a still operating solar or wind system.
The gas generator preserves against this by not kicking on until ALL grid separation is made from all systems.
It gets a bit complicated but Ill bet your friend is similarly hooked up.
(Hes probably got all the power he needs until a snowstorm knocks out the grid then all renewables get shut off too)